Choosing the correct Inductor for a DC-DC step-up regulator - Introduction

RE: Choosing the correct Inductor for a DC-DC step-up regulator - Introduction

luislabmo — Wed, 22 Jan 2020 16:48:15 GMT

This is a nice project Gene!. I was looking for someone to write about exactly this topic in the challenge as most of the time I go with the recommended inductor by the manufacturer (DC-DC converter) only because it's hard for me to understand how to chose a better one for a specific design. [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-30f6fc27-4a2e-49e0-8873-eece2209700f/contentimage_5F00_1.png:16:16]

Looking forward to your other entries about the subject.

Luis

RE: Choosing the correct Inductor for a DC-DC step-up regulator - Introduction

jw0752 — Sat, 18 Jan 2020 14:30:53 GMT

Hi Gene,

Thanks for the great project post. I have always been fascinated with DC to DC converter design. Have you seen the Recom DC to DC and AC to DC Books of knowledge?

https://www.digikey.com/en/product-highlight/r/recom-power/book-of-knowledge

I found the DC to DC quite interesting and I am about to look at the AC to DC one.

John

RE: Choosing the correct Inductor for a DC-DC step-up regulator - Introduction

shabaz — Sat, 18 Jan 2020 02:08:52 GMT

Hi Gene,

Cool project! And very nice how you've got a testing board for your test board : ) The design looks useful.

I've been meaning to build a general-purpose relay card for a while, for similar test harness stuff (minus the ADC/DACs), I should get back to that sometime, I often think it would be useful, but finding the time is hard..

RE: Choosing the correct Inductor for a DC-DC step-up regulator - Introduction

Andrew J — Fri, 17 Jan 2020 23:57:12 GMT

Great, thanks.

RE: Choosing the correct Inductor for a DC-DC step-up regulator - Introduction

Andrew J — Fri, 17 Jan 2020 23:25:02 GMT

Will you be updating this post, Gene, (so it’s worth me bookmarking) or creating a new one with results? This looks to be very interesting. I certainly know what happens with a step-down regulator and a too small inductor! Is there some way to measure the transient response of the regulator with different inductors?